Question: Let's check the phone application buffers for it's ability to calculate how to prepare a phosphate buffer. Suppose I want 1 liter of a 0.1

Let's check the phone application "buffers" for it's ability to calculate how to prepare a phosphate buffer. Suppose I want 1 liter of a 0.1 M phosphate buffer at a pH of 6.8. Phosphate has a pK2 of 7.2 MW of monosodium phosphate NaH2PO4 (aka monobasic) is 119.98 MW of disodium phosphate Na2HPO4 (aka dibasic) is 141.96 Let's first calculate the fraction of dibasic we need from the H-H equation. In other words solve for A-/total. Calculate to 3 sig figures

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